{
  "Attr.AllowedFrameTargets": [
    "_blank"
  ],
  "Attr.EnableID": true,
  "HTML.AllowedComments": [
    "pagebreak"
  ],
  "HTML.SafeIframe": true,
  "URI.SafeIframeRegexp": "%^(https?:)?//(www.youtube.com/|player.vimeo.com/)%"
}